Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main202313 Apr 2023Evening ShiftChemistryp Block Elements (Group 15, 16, 17 & 18)Actual

The correct group of halide ions which can be oxidised by oxygen in acidic medium is

Options

  1. ABr – and I – only
  2. BBr – only
  3. CI – only
  4. DCl –   ,   Br – and I – only

Correct answer

C. I – only

Step-by-step solution

Fluorine oxidises water to oxygen whereas chlorine & bromine react with water to form corresponding HX   &   HOX acids. 2 F 2 + 2 H 2 O → 4 HF + O 2 Cl 2 + H 2 O → HCl + HOCl The reaction of I 2 with water is nonspontaneous. In fact I – can be oxidised by oxygen in acidic medium. It is why the I – in nature is not present in that much amount as other halides are present in nature.

Practice p Block Elements (Group 15, 16, 17 & 18) on Quantrex Academy →

More from p Block Elements (Group 15, 16, 17 & 18)

Correct statement(s) about the compounds X , Y and Z is(are) 2026Correct statement(s) about the compounds P , Q and R is(are) 2026Find the correct statements related to group 15 hydrides. A. Reducing nature increases from NH₃ to BiH₃ B. Tendency to donate lone pair of electrons decreases from NH₃ to BiH₃ C. T 2026Treatment of a gas ' X ' with a freshly prepared ferrous sulphate solution gives a compound ' Y ' as a brown ring. The compounds X and Y are. 2026Correct statements from the following are: A. Nitrogen in oxidation states from +1 to +4 disproportionates in acid medium. B. Nitrogen has the ability to form d - p multiple bonds 2026Given below are two statements: Statement I: The covalency of oxygen is generally two but it can exceed upto four. The oxidation state of oxygen in SO₂ is -2 and in OF₂ it is +2 . 2026Given below are two statements : Statement (I) : Oxidising power of halogens decreases in the order F₂ > Cl₂ > Br₂ > I₂ , which is the basis of "Layer test". Statement (II) : "Laye 2026Given below are two statements : Statement I : The increasing order of boiling point of hydrogen halides is HCl Statement II : The increasing order of melting point of hydrogen hal 2026 Full p Block Elements (Group 15, 16, 17 & 18) list All JEE Main PYQs